Admin Table of Contents
- 1 Which atoms belong to the same group?
- 2 What are two atoms of the same element?
- 3 Are elements in the same group similar?
- 4 What similarities do elements in the same group have?
- 5 What do atoms have to have to be the same element?
- 6 What are two things that are elements in the same group make them similar?
- 7 Do atoms of each element have an unique mass?
- 8 How are atoms of the same element similar to one another?
Which atoms belong to the same group?
The elements in each group have the same number of electrons in the outer orbital. Those outer electrons are also called valence electrons. They are the electrons involved in chemical bonds with other elements. Every element in the first column (group one) has one electron in its outer shell.
What two elements are in the same group?
The elements in each group have the same number of valence electrons. As a result, elements in the same group often display similar properties and reactivity.
What are two atoms of the same element?
Isotopes are atoms with different atomic masses which have the same atomic number. The atoms of different isotopes are atoms of the same chemical element; they differ in the number of neutrons in the nucleus.
How do you know if two atoms belong to the same element?
The nucleus of an atom contains neutrons and protons bonded tightly together. The same chemical element can have a different number of neutrons and still be the same element. We refer to the atoms of the same element with different numbers of neutrons as “isotopes”.
Are elements in the same group similar?
The vertical columns on the periodic table are called groups or families because of their similar chemical behavior. All the members of a family of elements have the same number of valence electrons and similar chemical properties. The horizontal rows on the periodic table are called periods.
What are three elements in the same group?
Group 3 element
| Hydrogen | ||
|---|---|---|
| Potassium | Calcium | Selenium |
| Rubidium | Strontium | Tellurium |
| Caesium | Barium | Polonium |
| Francium | Radium | Livermorium |
What similarities do elements in the same group have?
The elements in the same group has similar number of valence electrons. They have identical number of electrons in their outermost shell. e.g. All the alkali metals in Group 1 have 1 valence electron, so they all tend to react the same way with other substances.
Why are atoms of the same element the same?
– Atoms of a given element are identical (meaning they have the same mass and properties). – Atoms retain their identity in all chemical reactions. This is basically the Law of Conservation of matter stating that an equal amount of mass exists before and after a reaction.
What do atoms have to have to be the same element?
Atoms of a particular element must have the same number of protons but can have different numbers of neutrons. When an element has different variants that, while all having the same number of protons, have differing numbers of neutrons, these variants are called isotopes.
Why atoms in the same group have similar properties?
The electron arrangements of atoms help explain the properties of elements and the structure of the periodic table. So, elements in the same group have similar chemical properties because they have the same number of electrons in their outer shell.
What are two things that are elements in the same group make them similar?
What do all atoms of any single element have in common?
The common feature is that the atoms of all elements consist of electrons, protons, and neutrons.
Do atoms of each element have an unique mass?
atoms of each element have the same mass but elements have different masses from each other Dalton’s Atomic Theory (3) atoms of some pairs of elements can combine with each other in different ratios to form different compounds
Are all atoms of a particular element identical?
All elements are composed of tiny indivisible particles called atoms. Atoms of the same element are identical. The atoms of any one element are different from those of any other element. Atoms of different elements can physically mix together or combine in simple, whole number ratios to form compounds.
How are atoms of the same element similar to one another?
Answer. Two atoms of the same element contain the same number of protons. They can have different numbers of neutrons, but then they are isotopes of the element. If the number of electrons is different from the number of protons, they are ions of the element.